<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" />
    <link rel="stylesheet" href="style.css" />
</head>
<body>
    <label for="in">
        <input type="checkbox" id="in" />
        <span class="btn"></span>
        <i class="fa fa-power-off"></i>
    </label>
</body>
</html>